[THIN] Re: XenServer Slowdown
- From: "James Scanlon" <James.Scanlon@xxxxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Thu, 18 Nov 2010 08:08:11 -0000
Joe, Berny
Thanks for the update... really appreciate the info / ideas...
RAm is configured like so
BankLabel Capacity Caption CreationClassName
DataWidth Description DeviceLocator FormFactor
HotSwappable InstallDate InterleaveDataDepth
InterleavePosition Manufacturer MemoryType Model Name
OtherIdentifyingInfo PartNumber PositionInRow PoweredOn
Removable Replaceable SerialNumber SKU Speed Status
Tag TotalWidth TypeDetail Version
4294967296 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 1 DIMM 2D 8
0 Physical Memory 1333 Physical Memory 1
72 128
2147483648 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 1 DIMM 3A 8
0 Physical Memory 1333 Physical Memory 2
72 128
4294967296 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 1 DIMM 5E 8
0 Physical Memory 1333 Physical Memory 4
72 128
2147483648 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 1 DIMM 6B 8
0 Physical Memory 1333 Physical Memory 5
72 128
4294967296 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 1 DIMM 8F 8
0 Physical Memory 1333 Physical Memory 7
72 128
2147483648 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 1 DIMM 9C 8
0 Physical Memory 1333 Physical Memory 8
72 128
4294967296 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 2 DIMM 2D 8
0 Physical Memory 1333 Physical Memory 10
72 128
2147483648 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 2 DIMM 3A 8
0 Physical Memory 1333 Physical Memory 11
72 128
4294967296 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 2 DIMM 5E 8
0 Physical Memory 1333 Physical Memory 13
72 128
2147483648 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 2 DIMM 6B 8
0 Physical Memory 1333 Physical Memory 14
72 128
4294967296 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 2 DIMM 8F 8
0 Physical Memory 1333 Physical Memory 16
72 128
2147483648 Physical Memory Win32_PhysicalMemory
64 Physical Memory PROC 2 DIMM 9C 8
0 Physical Memory 1333 Physical Memory 17
72 128
________________________________
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
Behalf Of Berny Stapleton
Sent: 17 November 2010 22:21
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: XenServer Slowdown
Don't forget the toss up between UDIMM vs RDIMM.
UDIMM is faster than RDIMM but not registered, there is a memory limit
on the amount of UDIMM you can run as well. Depending on the situation
your in, this might be a trade off your willing to make.
Berny
On Wed, Nov 17, 2010 at 9:05 PM, Joe Shonk <joe.shonk@xxxxxxxxx> wrote:
32 gigs is the limit for Windows Server Standard 2008 x64.
Enterprise will do 1 terabyte.
The one thing that jumps out at me is the number 36. Generally
with a 2 proc Nehalem based system you would expect to see memory in the
following multiples: 1, 12, 24, 48 or 96. Yes there are other memory
configurations that work but they generally indicate that the memory is
not optimized.
The number 36 means to me that you're running either (6 x 4gb
dimms + 6 x 2gb dimms) or (18 x 2gb dimms). The later configuration
would choke your memory bus speed from 1333MHz to 800 MHz.
I would also check to see what rank the dimms you have are.
Joe
From: thin-bounce@xxxxxxxxxxxxx [mailto:
thin-bounce@xxxxxxxxxxxxx] On Behalf Of James Scanlon
Sent: Wednesday, November 17, 2010 9:46 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: XenServer Slowdown
XenApp - Correct
Windows 2008 SP2 - not R2,
Windows system reports 36GB in system properties, HP SIM reports
32GB of ram addressable / available - WTF? - chasing this up for further
details.......
________________________________
From: thin-bounce@xxxxxxxxxxxxx [mailto:
thin-bounce@xxxxxxxxxxxxx] On Behalf Of Joe Shonk
Sent: 17 November 2010 16:28
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: XenServer Slowdown
I'm going to out on a limb and assume that you are referring to
XenApp and not XenServer.
First question, why Windows 2008 Standard x64?
Windows 2008 R2 is going to be a much better
choice, especially if you are running this directly on new hardware.
Second, Standard edition only support 32 gigs
and you're showing 36 gigs
Also, which metric is sitting at 25% utilized?
Joe
From: thin-bounce@xxxxxxxxxxxxx [mailto:
thin-bounce@xxxxxxxxxxxxx] On Behalf Of James Scanlon
Sent: Wednesday, November 17, 2010 8:45 AM
To: thin@xxxxxxxxxxxxx
Subject: [THIN] Re: XenServer Slowdown
Greetings
(sorry about last unfinished email went to save to get more info
and clicked send - sigh)
We are having speed issues with our XenServers
* Brand New builds
* Deployed with Altiris
* Xenserver 5.0
* Windows 2008 Standard 64bit
* 36GB RAM
* Dual CPU, 8 Core processors X5560 2.80Ghz
* Appsense EM and PM (with citrix CPU and memory
management disabled)
* Sophos AV
* HP Hardware DL380 G6 with teamed nics
For normal operation we are getting 25 second login time (to
desktop)
After approx 30 users (or 2 days without a reboot), the
performance drops to 1-1.5 minutes just to log in, everything sluggish,
cant open task manager even though multiple taskman icons appear in
systray.
No performance issues on the systems themselves, all sitting
around %25 utilised. (CPU, MEM, DISK etc)
So far:
We have disabled Sophos, no result
disabled Appsense, no result
turned on VT instructions for CPU in the BIOS, no result
turn off TCP offloading for the NICS
HW firmware for Servers / patching (latest PSP)
Software for OS and apps / patching
Any one seen anything like this already? apart now from bringing
up a VM host to eliminate hardware or a full manual rebuild and testing
at each stage of the build process - we are starting to run out of
'obvious ideas'
ANY assistance and advice greatly appreciated!
JAMES
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